Marleau was terrible in game 5. That said, some people are none to happy with his comments:
Two articles on the topic:
Roenick's comment about Marleau, 'gutless,' causes uproar - USATODAY.com
Roenick calls Marleau ‘gutless’: Constructive critic or crossed line? - Puck Daddy - NHL*Blog - Yahoo! Sports
[nomedia="http://www.youtube.com/watch?v=jy-9dgnB2v0&feature=player_embedded"]YouTube - Jeremy Roenick Criticizes Sharks Patrick Marleau after Game 5[/nomedia]
(Biased) Randy Hahn:
(Unbiased) Craig Button:
JR could have been (a lot) more tactful, but the gist of what he was saying was accurate.